Analysis

  • max time kernel
    149s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/10/2026, 01:25

General

  • Target
    63c1057ce0510ec1.bin.msi
  • Size 16.2MB
  • Sample261025-bs4saaxyex
  • SHA256 63c1057ce0510ec13d51209b71579079dabc120ea92e8125965005edbd7fc99c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\63c1057ce0510ec1.bin.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2588
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 55AC4E094A395785AA0170E251AA34A7 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5044
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240724531 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3628
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI3000.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240726125 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:5244
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI390A.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240728359 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5836
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4904
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 202396C545D6E391F215BF6A88439EFC
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2636
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1E56057CBA4DBC1C2544761E63B777A9 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2388
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3596
    • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-o84gk4-relay.screenconnect.com&p=443&s=289bb0e6-9a56-4062-8641-bf7affa2af07&k=BgIAAACkAABSU0ExAAgAAAEAAQAZ9ENG2jHttCAUiWWm1ZG4pvuiylgihw7DCNY6zvuVuLXBHU2s5DiYlOCzYXde3ggospyCwB2MMcBS7dUPtiGu4%2f8LkcMJV9%2b9u3r29db637kKFtlaIegjd8JBUfC5AchBTn%2bTXJYEApajjWe1aL%2fJhtuTtVVo%2fw87d%2fiSQ7qcwPwOdyuuuM7XYsmCv%2frcP7v%2bubL3pIBNK3wCmOFhl6yjKm%2fSNTCyCGGFq43sushLQ9p3DQQb2c3rCVhUhz5wq3mEkPDtA6NVDDM69T3qFaTFqGqdUXaBFskTjRKiJNivscLgCwvTzlAN%2fOYrBDj8plca4WYDlX50wPtw%2bqfahFzC&c=lion&c=&c=&c=&c=&c=&c=&c="
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5028
      • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe" "RunRole" "536a049a-fa71-4186-92eb-bd269cc5f29e" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3144
      • C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe" "RunRole" "548a7d8d-523d-4b8b-995d-42990ca5c05b" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:552

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5982b4.rbs

          • Path C:\Config.Msi\e5982b4.rbs
          • Size 214KB
          • SHA256 4fca3be7d26d93565ab4bbc9f190031465bb18ec165cbf1f38840f57dc57053b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsClient.exe
          • Size 1.6MB
          • SHA256 b7a495f517b9bf23f529552b145121f922ab4915e24b663ae68b3007daea3804
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (3fb664d3d47971f5)\system.config
          • Size 966B
          • SHA256 7569e70f9ff589657efdc370c85cf4ba88659a732b8470915019dfa7b682393b
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 eed8eb6184c4038589a791d9dea1226cd0c964e7de752781f428a1d876d8d59c
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 3c7831679eaaba75ed1198c62589ab59bc3c5023d99ac86ea5648db370b526fd
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 4f41263d481dbcca97dd8a81c7b8cd74e2c23e3c1db730cc987e6323fc12ad8f
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 3e1b2ecd17f45b87a6f981cb036b724c1fe748bf90e0814b680c1e95387ed508
          • MD5 SHA1 SHA512 TLSH

          MSI28AC.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI28AC.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3000.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI3000.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8777.tmp

          • Path C:\Windows\Installer\MSI8777.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e5982b5.msi

          • Path C:\Windows\Installer\e5982b5.msi
          • Size 16.2MB
          • SHA256 63c1057ce0510ec13d51209b71579079dabc120ea92e8125965005edbd7fc99c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          hboq401q.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\hboq401q.newcfg
          • Size 683B
          • SHA256 82b391e827ec116e9769ca655d7ae20978f3be068ae0c75fb773bd50c4eea7b2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\user.config
          • Size 520B
          • SHA256 405d2df99a59001ca3a8f56b8669c68d7df54d4270bef2c3bda1ce7561278fd4
          • MD5 SHA1 SHA512 TLSH

          woebrwe5.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (3fb664d3d47971f5)\woebrwe5.newcfg
          • Size 883B
          • SHA256 3248a4fe70a8a17276886b59c3785994755bcaba42645e624f0ce38c431e47ef
          • MD5 SHA1 SHA512 TLSH

          memory/3144-224-0x00000000025C0000-0x00000000025F0000-memory.dmp

          memory/3144-219-0x0000000000150000-0x00000000002E6000-memory.dmp

          memory/3144-223-0x000000001B980000-0x000000001BB08000-memory.dmp

          memory/3144-225-0x0000000000B50000-0x0000000000B91000-memory.dmp

          memory/3144-221-0x000000001B460000-0x000000001B5BA000-memory.dmp

          memory/3144-220-0x000000001AF40000-0x000000001AFDE000-memory.dmp

          memory/3144-222-0x000000001B7A0000-0x000000001B980000-memory.dmp

          memory/3628-40-0x00000000063F0000-0x00000000069AA000-memory.dmp

          memory/3628-39-0x0000000005C50000-0x0000000005E30000-memory.dmp

          memory/3628-35-0x0000000005AF0000-0x0000000005C4A000-memory.dmp

          memory/3628-31-0x0000000003820000-0x000000000382C000-memory.dmp

          memory/3628-27-0x00000000037D0000-0x00000000037FE000-memory.dmp

          memory/5028-198-0x0000000003DA0000-0x0000000003DE1000-memory.dmp

          memory/5028-200-0x0000000004630000-0x0000000004706000-memory.dmp

          memory/5028-196-0x00000000043A0000-0x000000000443E000-memory.dmp

          memory/5028-164-0x0000000004040000-0x0000000004090000-memory.dmp

          memory/5028-162-0x0000000004120000-0x0000000004300000-memory.dmp

          memory/5028-158-0x0000000003DE0000-0x0000000003F3A000-memory.dmp

          memory/5028-152-0x00000000017C0000-0x00000000017F0000-memory.dmp

          memory/5244-70-0x0000000005E50000-0x0000000005EB8000-memory.dmp

          memory/5836-107-0x0000000005430000-0x00000000054C2000-memory.dmp